title: Combined motor imagery and SSVEP based BCI control of a 2 DoF artificial upper limb.
abstract: A Brain-Computer Interface (BCI) is a device that transforms brain signals, which are intentionally modulated by a user, into control commands. BCIs based on motor imagery (MI) and steady-state visual evoked potentials (SSVEP) can partially restore motor control in spinal cord injured patients. To determine whether these BCIs can be combined for grasp and elbow function control independently, we investigated a control method where the beta rebound after brisk feet MI is used to control the grasp function, and a two-class SSVEP-BCI the elbow function of a 2 degrees-of-freedom artificial upper limb. Subjective preferences for the BCI control were assessed with a questionnaire. The results of the initial evaluation of the system suggests that this is feasible.
authors.affiliation: Laboratory of Brain-Computer Interfaces, Institute for Knowledge Discovery, Graz University of Technology, Krenngasse 37, Graz, Austria. petar.horki@tugraz.at
authors.forename: Petar
authors.initials: P
authors.lastname: Horki
authors.forename: Teodoro
authors.initials: T
authors.lastname: Solis-Escalante
authors.forename: Christa
authors.initials: C
authors.lastname: Neuper
authors.forename: Gernot
authors.initials: G
authors.lastname: Müller-Putz
mesh_terms: D000328:Adult; D001186:Artificial Limbs; D001931:Brain Mapping / Q000379:methods; D004551:Elbow Joint / Q000502:physiology; D004569:Electroencephalography / Q000379:methods; D005074:Evoked Potentials, Visual / Q000502:physiology*; D005240:Feasibility Studies; D005260:Female; D018737:Hand Strength / Q000502:physiology; D006801:Humans; D007092:Imagination / Q000502:physiology*; D008297:Male; D014584:User-Computer Interface; D055815:Young Adult